Carbon Cycle EQ1

What is the natural carbon cycle?

• The movement and storage of carbon between the land, ocean, and atmosphere

• The process of photosynthesis in plants

• The formation of carbonates in rocks

• The emission of carbon dioxide from vehicles

Which of the following is an example of inorganic carbon in the carbon cycle?

• Carbon found in plant material

• Carbon found as CO2 and CH4

• Carbon found in rocks as bicarbonates and carbonates

• Carbon found in living organisms

What is a carbon sink?

• A store that emits more carbon than it stores

• A store that takes in more carbon than it emits

• A process of carbon dioxide emission

• A type of fossil fuel

Where is carbon present as dissolved CO2?

• Atmosphere

• Lithosphere

• Hydrosphere

• Biosphere

What is carbon sequestration?

• The process of releasing carbon into the atmosphere

• The transfer of carbon from the atmosphere to other stores

• The conversion of carbon into fossil fuels

• The destruction of carbon stores

Which of the following is the largest carbon store?

• Oceans

• Fossil Fuel Deposits

• Marine Sediments and Sedimentary Rocks

• Terrestrial Plants

What has caused CO₂ levels in the atmosphere to increase by around 40%?

• Deforestation

• Industrial Revolution

• Oceanic Drift

• Fossil Fuel Extraction

Where is terrestrial plant storage primarily focused?

• Southern Hemisphere

• Northern Hemisphere

• Tropics and Northern Hemisphere

• Oceans

Which process is described as the opposite of photosynthesis?

• Combustion

• Fermentation

• Respiration

• Evaporation

What is the chemical formula for photosynthesis?

• Oxygen + Glucose → Carbon Dioxide + Water

• Carbon Dioxide + Water → Light Energy → Oxygen + Glucose

• Carbon Dioxide + Oxygen → Glucose + Water

• Glucose + Water → Carbon Dioxide + Oxygen